Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Deforestation is one of the biggest environmental threats to the _______ 
A.emissions
B.ecological balance
C.carbon dioxide
D.carbon footprint

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The burning of fossil fuels is causing a shortage in natural _______.
A.assets
B.wealth
C.resources
D.supplies

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
If too many species _______ out, it will upset the ecosystem.
A.extinct
B.go
C.die
D.disappear

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
If we continue to _______ the world’s resources at this rate, there will soon be none left.
A.throw away
B.use up
C.finish
D.damage

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Factory _______ are the main cause of environmental pollution.
A.remissions
B.emissions
C.admissions
D.submissions

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Al Gore is leading a global _______ for environmental awareness.
A.operation
B.action
C.campaign
D.attack

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
The problem has been _______ about by the increase in global warming.
A.brought
B.caused
C.thought
D.written

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Measures must be taken to stop nuclear waste being _______ at sea
A.store
B.dropped
C.left
D.dumped

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
A large amount of carbon dioxide _______ are released into the atmosphere by burning fossil fuels.
A.environment
B.emissions
C.carbon footprint
D.infectious diseases

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to the following question.
Although global warming is causing changes in weather patterns, it is only one aspect of _______.
A.emissions
B.climate change
C.carbon dioxide
D.ecological balance